Bearings Outrace Abec-7 chrome 8 pcs Bearings Abec-7 Outrace will ensure smooth rotation of the wheel. Durable. Set of 8 bearings and 4 bushes will be compatible with standard models of roller skates, roller skates, scooters etc.  Technical data:· material: steel chrome (chrome)· bearings ball· tolerance class: Abec-7· set includes: 8 pcs bearings 4 bushes